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Texas Instruments TLE2141CD
- Part No.:
- TLE2141CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2141CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,331
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Product details
Overview
TLE2141CD from Texas Instruments is a single-channel Excalibur low-noise high-speed precision operational amplifier designed for demanding signal conditioning in industrial and power electronics systems. It delivers 10.5nV/√Hz input voltage noise at 1kHz, 27V/μs slew rate (±15V supply), 5.9MHz gain-bandwidth product, and operates across ±2V to ±22V supplies with 0°C to 70°C temperature range. It is used in EV charging infrastructure for current-sense amplification and voltage regulation feedback loops.
For engineers reviewing the TLE2141CD datasheet, TLE2141CD pinout, TLE2141CD application, or TLE2141CD equivalent, key selection criteria include its 500μV max input offset voltage at 25°C, 1000pF capacitive load drive capability, fast 340ns settling time to 0.1%, symmetrical slew rate, and SOIC-8 package compatibility with legacy TI precision op-amp footprints.
Technical Context
The TLE2141CD uses TI's complementary bipolar Excalibur process to achieve simultaneous low audio-band noise (10.5nV/√Hz @1kHz, 10Hz 1/f corner) and high slew rate (27V/μs min). Its input stage enables robust performance under heavy capacitive loads up to 1000pF without instability.
It supports both single-supply (4V–44V) and split-supply (±2V–±22V) operation, with rail-to-rail input common-mode range and output swing from VCC− +0.1V to VCC+ −1V. Saturation recovery is specified at 150ns, enabling use in comparator mode with TTL-level propagation delay (~200ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 10.5nV/√Hz @1kHz - enables high-fidelity signal amplification in low-level sensor interfaces |
| Slew Rate | 27V/μs (min, ±15V) - supports fast transient response in closed-loop power control |
| Gain-Bandwidth Product | 5.9MHz - provides stable unity-gain operation with ≥57° phase margin into 100pF load |
| Input Offset Voltage | 500μV max @25°C - ensures accurate DC-coupled measurement in precision analog front-ends |
| Supply Voltage Range | ±2V to ±22V (split) or 4V to 44V (single) - accommodates wide industrial bus voltages |
| Capacitive Load Drive | 1000pF - allows direct driving of ADC input filters or long cables without external compensation |
| Settling Time | 340ns to 0.1% (10V step) - meets timing requirements in high-speed actuator positioning circuits |
Pinout & Package
Package: SOIC-8 (D package), 4.9mm × 6mm body size, surface-mount, industry-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (N1) | Connects to 5kΩ potentiometer wiper for manual input offset trimming |
| 2 | Inverting Input (IN−) | Differential input node; accepts feedback network for closed-loop configuration |
| 3 | Non-Inverting Input (IN+) | Differential input node; referenced to ground or bias voltage in single-supply designs |
| 4 | VCC− (Negative Supply) | Negative rail connection; supports split-supply operation down to −22V |
| 5 | Offset Null (N2) | Connects to 1kΩ resistor to VCC− for balanced null circuit implementation |
| 6 | Output (OUT) | Amplified signal output; drives loads up to 15mA and 1000pF capacitance |
| 7 | VCC+ (Positive Supply) | Positive rail connection; supports supply up to +22V in split mode or +44V in single mode |
| 8 | NC / Not Connected | No internal connection; left unconnected per TI datasheet guidance |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 10Hz - preserves signal integrity in DC-coupled instrumentation and slow-varying sensor outputs |
| Fast saturation recovery | 150ns - enables reliable use as a comparator in overvoltage protection circuits |
| High output current | 20mA short-circuit min - sustains drive capability into low-impedance feedback networks |
| Wide supply range | ±2V to ±22V - eliminates need for level-shifting in multi-rail industrial power systems |
| Input overvoltage tolerance | ±44V differential - withstands transients beyond rails in motor drive and battery monitoring |
Applications
| EV Charging Infrastructure | Industrial AC-DC Power Supplies |
|---|---|
|
Use Scenario: High-accuracy shunt-based current sensing in 3-phase OBC (on-board charger) and DC fast-charging modules. IC Role / Device Role / Timing Role: Precision current-sense amplifier in isolated feedback path, operating at ±15V with 100kHz switching noise rejection. Use Value: 10.5nV/√Hz noise floor and 500μV max VIO ensure ≤0.5% current measurement error across full temperature range. |
Use Scenario: Voltage regulation loop compensation in high-efficiency LLC resonant converters. IC Role / Device Role / Timing Role: Error amplifier in secondary-side feedback circuit, driving optocoupler LED with 340ns settling. Use Value: 27V/μs slew rate and 5.9MHz GBW enable stable phase margin >57° at 100kHz loop bandwidth. |
| Fire Alarm Control Panel (FACP) | String Inverter Monitoring |
|
Use Scenario: Smoke detector analog signal conditioning and threshold comparison in Class A fire alarm panels. IC Role / Device Role / Timing Role: Dual-function device: low-noise preamp for ionization chamber signals and fast comparator for alarm triggering. Use Value: 150ns saturation recovery and 200ns TTL-compatible propagation delay meet NFPA 72 response-time requirements. |
Use Scenario: String voltage and leakage current monitoring in photovoltaic central inverters. IC Role / Device Role / Timing Role: Isolated differential amplifier for floating string measurements, interfacing with SAR ADCs. Use Value: 1000pF load drive capability allows direct RC filtering before ADC sampling without oscillation risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDR | Lower noise (1.1nV/√Hz), lower VIO (25μV), but only 4.5MHz GBW and limited to ±18V max supply | Better for ultra-low-noise sensor front-ends; unsuitable for ±22V industrial rails or 1000pF loads | Select when sub-100nV/√Hz noise dominates design priority and supply stays within ±18V |
| LT1028CS8#PBF | Ultra-low noise (0.85nV/√Hz), higher slew rate (15V/μs), but requires ±5V to ±15V only and no 1000pF drive spec | Preferred for lab-grade instrumentation; lacks industrial voltage range and capacitive load robustness | Choose for metrology-grade DC accuracy where supply constraints allow and load capacitance <100pF |
Compared with OPA211IDR and LT1028CS8#PBF, the TLE2141CD uniquely balances industrial-grade supply range (±22V), 1000pF drive capability, and 10.5nV/√Hz noise-making it optimal for ruggedized power electronics where reliability under capacitive and voltage stress outweighs ultra-low-noise optimization.
Availability
TLE2141CD is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC power supplies, and fire alarm control panel (FACP) applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLE2141CD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and industrial-grade ICs.
The TLE214x family was engineered for high-reliability industrial signal conditioning-specifically targeting applications needing low noise, high speed, and robust operation across wide supply and temperature ranges.
FAQ
What is the maximum capacitive load the TLE2141CD can drive without compensation?
The TLE2141CD is characterized to drive up to 1000pF capacitive loads stably without external compensation, as confirmed in the datasheet's "Load capability" specification and Figure 12 (closed-loop frequency response with 1000pF). This makes it suitable for direct interface with ADC input filters, cable-driven outputs, or optocoupler LEDs in isolated feedback paths.
Does the TLE2141CD support single-supply operation, and what is the minimum supply voltage?
Yes, the TLE2141CD supports true single-supply operation from 4V to 44V. At 4V, the input common-mode range extends from 0V to 2.9V (per Recommended Operating Conditions), and output swing reaches from 0.1V to 3.8V with 1.5mA load-enabling use in low-voltage industrial controllers and battery-powered monitoring nodes.
How does the TLE2141CD's input offset voltage compare between C-suffix and A-suffix variants?
The TLE2141CD has a maximum input offset voltage of 500μV at 25°C, while the tighter-grade TLE2141ACD is specified at 200μV max under identical conditions. Both share the same 1.7μV/°C temperature coefficient, so the C-suffix offers cost-effective precision for applications where <500μV drift is acceptable across 0°C–70°C.
Can the TLE2141CD be used as a comparator, and what is its typical propagation delay?
Yes, the TLE2141CD can operate as a comparator. With TTL-level supply voltages, its open-loop propagation delay is typically 200ns, and saturation recovery time is 150ns-verified in the datasheet's "Description" section and electrical characteristics tables. This enables use in overvoltage lockout and fast fault-detection circuits.
What is the thermal resistance (θJA) of the TLE2141CD in its SOIC-8 package?
The TLE2141CD in the D (SOIC-8) package has a junction-to-ambient thermal resistance (θJA) of 97.1°C/W, as specified in Section 5.1 Absolute Maximum Ratings. This value assumes standard JEDEC 2-layer board conditions and informs thermal design for continuous 4.4mA supply current operation at elevated ambient temperatures.
TLE2141CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 45V/µs
- Gain Bandwidth Product:
- 5.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 700 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 3.5mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2141CD FAQ
1.How can I place an order for TLE2141CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2141CD on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE2141CD reliable?
The price and inventory of TLE2141CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2141CD is usually 5 days.
3.What payment methods are accepted for TLE2141CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2141CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2141CD?
TLE2141CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2141CD order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE2141CD?
For technical support, including TLE2141CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2141CD requirements.
6.How does Aetrix verify that TLE2141CD is sourced from the original manufacturer or authorized distributors?
All TLE2141CD products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE2141CD meets industry standards.
7.What is the process for return or replacement of TLE2141CD?
All TLE2141CD units undergo pre-shipment inspection (PSI). If there is an issue with TLE2141CD, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE2141CD part is unused and in its original packaging.
Return procedure for TLE2141CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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